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Old 10-25-2012, 03:57 PM   #319
Roadracer_Al
louder, louder, louder!
 
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Joined: Aug 2007
Location: Oakland, CA
Oddometer: 1,678
This is a pretty good source of information:


http://www.motorcyclecarbs.com/carbs101.pdf

The real key to tuning is to understand how the engine feels under certain jetting conditions. For example, if it surges while cruising, it's lean. If it stumble when accelerating, it's rich.
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